Development of an exchange-correlation functional with uncertainty quantification capabilities for density functional theory
Development of an exchange-correlation functional with uncertainty quantification capabilities for density functional theory
复制标题
密度泛函理论中具有不确定性量化能力的交换相关函数的开发
DOI:
10.1016/j.jcp.2016.01.034
复制
发表时间:
2016
影响因子:
4.1
通讯作者:
Aldegunde M
中科院分区:
文献类型:
--
作者:
Aldegunde M
This paper presents the development of a new exchange–correlation functional from the point of view of machine learning. Using atomization energies of solids and small molecules, we train a linear model for the exchange enhancement factor using a Bayesian approach which allows for the quantification of uncertainties in the predictions. A relevance vector machine is used to automatically select the most relevant terms of the model. We then test this model on atomization energies and also on bulk properties. The average model provides a mean absolute error of only 0.116 eV for the test points of the G2/97 set but a larger 0.314 eV for the test solids. In terms of bulk properties, the prediction for transition metals and monovalent semiconductors has a very low test error. However, as expected, predictions for types of materials not represented in the training set such as ionic solids show much larger errors.
DOI:
10.1103/physreva.80.032504
发表时间:
2009
期刊:
The Journal of chemical physics
影响因子:
--
作者:
Y. Kanai;J. Grossman
通讯作者:
J. Grossman
DOI:
10.1073/pnas.1423145112
发表时间:
2015-01
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
作者:
Jianwei Sun;J. Perdew;A. Ruzsinszky
通讯作者:
Jianwei Sun;J. Perdew;A. Ruzsinszky
影响因子:
2.2
作者:
M. Levy;J. Perdew
通讯作者:
J. Perdew